Thanks,
It is real rust indeed, not just paint with rusty color.
Well, I'm not going to disclose my little secrets yet but the oxidation process is stabilised once I'm happy with it so, the rest of the metal won't be rusted in time (I don't have 100 years of feedback though!!)
What I meant was, is everything in the pictures rust, or just the bits that look like rust?
Some parts look like pencil sketches and I wondered if they were rust too?
For example, the golfer in the third picture looks grey like pencil would look. Have you done something to colour the rust, or is it actually pencil (or something else)?
Oh yes!
In fact all that looks rusty (Brown...) is real rust. The white parts are made of acrylics paint and some times some of it is worked with pencil to create light and shadows.... So you're right, it's a mixe of rust AND pencil drawing. This one of the particularity of my work!